Add visibility to midi interfaces from internal notebook binary. (#244)
Add visibility to midi interfaces from internal notebook binary. (#244)

* Add internal notebook visibility for midi interface.

* Add internal notebook visibility for midi interface.

* Add internal notebook visibility for midi interface.

hanzorama/magenta,YoshikawaMasashi/magenta,adarob/magenta,YoshikawaMasashi/magenta,YoshikawaMasashi/magenta,magenta/magenta,hanzorama/magenta,YoshikawaMasashi/magenta,jesseengel/magenta,magenta/magenta,adarob/magenta,jesseengel/magenta